Name the organs of respiration in the following organisms:
a. Flatworm -
b. Birds -
c. Frog-
d. Cockroach -
Name the organs of respiration in the following organisms:
a. Flatworm -
b. Birds -
c. Frog-
d. Cockroach -
a. Respiratory organ in flatworms:
In flatworms, every cell in the body is in close contact with the external environment. Therefore, respiration occurs through the body surface by diffusion.
Final answer
Body surface
b. Respiratory organ in birds:
Birds have vascularised bags called lungs for respiration.
Final answer:
Lungs
c. Skin as respiratory organs in frogs:
Frog is an amphibian. While underwater, it uses its skin to absorb oxygen. The mucus glands present in the frog’s skin help in keeping the skin moist. Besides, the lining of their mouth serves as a respiratory surface for the gaseous exchange. This is the predominant form of breathing while it is at rest.
Lungs as respiratory organs in frogs:
Lungs, though are not extremely well-developed in frogs, are used by them for gaseous exchange. Air is drawn through their nostrils and transferred to their lungs.
Final answer:
Skin, lungs
d. Respiratory organ in cockroach
Insects have spiracles on their exoskeletons. These serve as gateways to allow the entry of air into the trachea. Oxygen is carried to the body parts through the thin branching tubes (tracheal tubes subdivided into tracheoles) where exchange of gases occurs by diffusion.
Final answer:
Tracheal tubes
a. Respiratory organ in flatworms:
In flatworms, every cell in the body is in close contact with the external environment. Therefore, respiration occurs through the body surface by diffusion.
Final answer
Body surface
b. Respiratory organ in birds:
Birds have vascularised bags called lungs for respiration.
Final answer:
Lungs
c. Skin as respiratory organs in frogs:
Frog is an amphibian. While underwater, it uses its skin to absorb oxygen. The mucus glands present in the frog’s skin help in keeping the skin moist. Besides, the lining of their mouth serves as a respiratory surface for the gaseous exchange. This is the predominant form of breathing while it is at rest.
Lungs as respiratory organs in frogs:
Lungs, though are not extremely well-developed in frogs, are used by them for gaseous exchange. Air is drawn through their nostrils and transferred to their lungs.
Final answer:
Skin, lungs
d. Respiratory organ in cockroach
Insects have spiracles on their exoskeletons. These serve as gateways to allow the entry of air into the trachea. Oxygen is carried to the body parts through the thin branching tubes (tracheal tubes subdivided into tracheoles) where exchange of gases occurs by diffusion.
Final answer:
Tracheal tubes
